Patents by Inventor Makoto Usui

Makoto Usui has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7433277
    Abstract: A wobble demodulator for reproducing digital information from an optical recording medium in which a track is formed in accordance with a wobble signal that is MSK-modulated so as to contain the digital information by a carrier signal with a predetermined frequency and a sine wave signal with a frequency different from that of the carrier signal, includes: a wobble signal detector for detecting a wobble signal of the track from the optical recording medium; a wobble PLL for detecting the carrier signal based on the wobble signal detected by the wobble signal detector; a multiplier for multiplying the carrier signal detected by the wobble PLL by the wobble signal detected by the wobble signal detector and outputting a multiplied output; a MSK detector for detecting a MSK modulation mark having a phase or a frequency different from that of the carrier signal, based on an integrated value obtained by integrating the multiplied output from the multiplier on a predetermined section basis; and a MSK synchronization
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: October 7, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kohei Nakata, Toyoji Gushima, Makoto Usui, Kazuya Ohshima, Junichi Minamino
  • Publication number: 20080212438
    Abstract: A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded.
    Type: Application
    Filed: May 2, 2008
    Publication date: September 4, 2008
    Inventors: Toyoji Gushima, Shigeru Furumiya, Takashi Ishida, Hiromichi Ishibashi, Hironori Deguchi, Atsushi Nakamura, Junichi Minamino, Makoto Usui, Takeshi Nakajima
  • Publication number: 20080205237
    Abstract: A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded.
    Type: Application
    Filed: May 2, 2008
    Publication date: August 28, 2008
    Inventors: Toyoji GUSHIMA, Shigeru Furumiya, Takashi Ishida, Hiromichi Ishibashi, Hironori Deguchi, Atsushi Nakamura, Junichi Minamino, Makoto Usui, Takeshi Nakajima
  • Patent number: 7414946
    Abstract: A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: August 19, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toyoji Gushima, Shigeru Furumiya, Takashi Ishida, Hiromichi Ishibashi, Hironori Deguchi, Atsushi Nakamura, Junichi Minamino, Makoto Usui, Takeshi Nakajima
  • Patent number: 7403462
    Abstract: A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: July 22, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toyoji Gushima, Shigeru Furumiya, Takashi Ishida, Hiromichi Ishibashi, Hironori Deguchi, Atsushi Nakamura, Junichi Minamino, Makoto Usui, Takeshi Nakajima
  • Patent number: 7385903
    Abstract: A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: June 10, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toyoji Gushima, Shigeru Furumiya, Takashi Ishida, Hiromichi Ishibashi, Hironori Deguchi, Atsushi Nakamura, Junichi Minamino, Makoto Usui, Takeshi Nakajima
  • Patent number: 7358907
    Abstract: A small-sized antenna is adapted to be mounted on a circuit substrate. The antenna has an antenna body and a resin-molded body that has a first resin-molded body and a second resin-molded body. The antenna body is sandwiched by the first and second resin-molded bodies. The first resin-molded body engages to the second resin-molded body, and the first resin-molded body is mounted on the circuit substrate.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: April 15, 2008
    Assignee: Hitachi Cable, Ltd.
    Inventors: Shinichi Takaba, Makoto Usui
  • Publication number: 20080065950
    Abstract: A recording medium for storing a data stream is comprised of first error correcting codes obtained by encoding first information, second error correcting codes obtained by encoding second information, and synchronization signals. In the data stream, the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes. The second error correcting codes have the same number of corrections as the first error correcting codes. A code length of the second error correcting codes is shorter than a code length of the first error correcting codes.
    Type: Application
    Filed: October 30, 2007
    Publication date: March 13, 2008
    Inventors: Yuji TAKAGI, Makoto Usui, Hiroyuki Yabuno
  • Publication number: 20080065949
    Abstract: A recording medium for storing a data stream is comprised of first error correcting codes obtained by encoding first information, second error correcting codes obtained by encoding second information, and synchronization signals. In the data stream, the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes. The second error correcting codes have the same number of corrections as the first error correcting codes. A code length of the second error correcting codes is shorter than a code length of the first error correcting codes.
    Type: Application
    Filed: October 30, 2007
    Publication date: March 13, 2008
    Inventors: Yuji TAKAGI, Makoto Usui, Hiroyuki Yabuno
  • Publication number: 20080065951
    Abstract: A recording medium for storing a data stream is comprised of first error correcting codes obtained by encoding first information, second error correcting codes obtained by encoding second information, and synchronization signals. In the data stream, the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes. The second error correcting codes have the same number of corrections as the first error correcting codes. A code length of the second error correcting codes is shorter than a code length of the first error correcting codes.
    Type: Application
    Filed: October 30, 2007
    Publication date: March 13, 2008
    Inventors: Yuji TAKAGI, Makoto Usui, Hiroyuki Yabuno
  • Publication number: 20080046794
    Abstract: An ECC block is constituted by RS(248,216,33). Of a data length of 216 bytes (symbols), only 16 bytes are allocated to BCA data and the remaining 200 bytes are used for fixed data having a predetermined value. Using the fixed data of 200 bytes and the BCA data of 16 bytes, parities of 32 bytes (symbols) are calculated. Only the BCA data of 16 bytes and the parities of the former 16 bytes of the 32-byte parities, that is, a total of 32 bytes only, are recorded in a burst cutting area of an optical disc. In decoding, error correction processing is carried out by using the fixed data of 200 bytes. The unrecorded parities of 16 bytes are processed as having been erased. Thus, the error correction capability in a burst cutting area of an optical disc can be improved.
    Type: Application
    Filed: April 18, 2007
    Publication date: February 21, 2008
    Applicants: Sony Corporation, MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Shoei Kobayashi, Susumu Senshu, Tamotsu Yamagami, Makoto Usui, Hideshi Ishihara, Mitsurou Moriya, Cornelis Schep, Jakob Nijboer, Aalbert Stek
  • Publication number: 20070300124
    Abstract: A recording medium for storing a data stream is comprised of first error correcting codes obtained by encoding first information, second error correcting codes obtained by encoding second information, and synchronization signals. In the data stream, the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes. The second error correcting codes have the same number of corrections as the first error correcting codes. A code length of the second error correcting codes is shorter than a code length of the first error correcting codes.
    Type: Application
    Filed: August 29, 2007
    Publication date: December 27, 2007
    Inventors: Yuji Takagi, Makoto Usui, Hiroyuki Yabuno
  • Publication number: 20070300122
    Abstract: A recording medium for storing a data stream is comprised of first error correcting codes obtained by encoding first information, second error correcting codes obtained by encoding second information, and synchronization signals. In the data stream, the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes. The second error correcting codes have the same number of corrections as the first error correcting codes. A code length of the second error correcting codes is shorter than a code length of the first error correcting codes.
    Type: Application
    Filed: August 29, 2007
    Publication date: December 27, 2007
    Inventors: Yuji Takagi, Makoto Usui, Hiroyuki Yabuno
  • Publication number: 20070294714
    Abstract: A management server has: an identification-information reproducing unit which reproduces identification information from an optical disk; an invalid-unit intrinsic-information registration section which registers the reproduced identification information; and a restriction-lifting decision section which decides, on the basis of the registered identification information and unit intrinsic information given intrinsically to every recording unit, whether the identification information can be recorded on a master optical disk.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 20, 2007
    Inventors: Masaru Yamaoka, Makoto Usui, Toshihisa Nakano
  • Publication number: 20070285818
    Abstract: An ECC block is constituted by RS(248, 216, 33). Of a data length of 216 bytes (symbols), only 16 bytes are allocated to BCA data and the remaining 200 bytes are used for fixed data having a predetermined value. Using the fixed data of 200 bytes and the BCA data of 16 bytes, parities of 32 bytes (symbols) are calculated. Only the BCA data of 16 bytes and the parities of the former 16 bytes of the 32-byte parities, that is, a total of 32 bytes only, are recorded in a burst cutting area of an optical disc. In decoding, error correction processing is carried out by using the fixed data of 200 bytes. The unrecorded parities of 16 bytes are processed as having been erased. Thus, the error correction capability in a burst cutting area of an optical disc can be improved.
    Type: Application
    Filed: April 18, 2007
    Publication date: December 13, 2007
    Applicants: Sony Corporation, MATSUSHITA ELECTRIC INDUSTRIAL, KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Shoei KOBAYASHI, Susumu Senshu, Tamotsu Yamagami, Makoto Usui, Hideshi Ishihara, Mitsurou Moriya, Cornelis Schep, Jakob Nijboer, Aalbert Stek
  • Patent number: 7284180
    Abstract: A recording medium for storing a data stream is comprised of first error correcting codes obtained by encoding first information, and second error correcting codes obtained by encoding second information, and synchronization signals. The first error correcting codes have a first correction capability. The second error correcting codes have a second correction capability higher than the first correction capability. In the data stream, the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes. The first and second error correcting codes are encoded using Reed-Solomon codes.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: October 16, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuji Takagi, Makoto Usui, Hiroyuki Yabuno
  • Patent number: 7281191
    Abstract: A recording medium for storing a data stream is comprised of first error correcting codes obtained by encoding first information, second error correcting codes obtained by encoding second information, and synchronization signals. In the data stream, the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes. The second error correcting codes have the same number of corrections as the first error correcting codes. A code length of the second error correcting codes is shorter than a code length of the first error correcting codes.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: October 9, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuji Takagi, Makoto Usui, Hiroyuki Yabuno
  • Publication number: 20070230314
    Abstract: A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded.
    Type: Application
    Filed: June 7, 2007
    Publication date: October 4, 2007
    Inventors: Toyoji GUSHIMA, Shigeru Furumiya, Takashi Ishida, Hiromichi Ishibashi, Hironori Deguchi, Atsushi Nakamura, Junichi Minamino, Makoto Usui, Takeshi Nakajima
  • Patent number: 7277368
    Abstract: Stable playback performance is assured and data loss due to out-of-step synchronization is reduced even when playback signal quality deteriorates due to such cause as a recording medium defect. The playback method applies to a recording medium to which data is recorded in block units containing multiple fixed-length frames together with block address information. The data and the block address information are acquired from the recording medium. The recording position of each frame in a block is then predicted from the acquired block address information. Synchronization is then set to the frame level based on the acquired data, and the memory address for storing the acquired data is determined based on the predicted recording position. The acquired data is then stored at the determined memory address.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: October 2, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toyoji Gushima, Makoto Usui, Yuji Takagi, Yuichi Hashimoto
  • Patent number: 7271771
    Abstract: A film antenna whose antenna characteristics are unaffected by chassis is provided. A recessed groove portion 26 is formed in a ground portion 13 which is attached to a chassis 18. A first radiating element portion 14 is formed from a wall 26a on one side of the groove portion 26 to a wall 26b on the other side. A capacitive coupling piece portion 27 which is capacitively coupled via a specified gap g to the first radiating element portion 14 is formed on the wall 26b on the other side to thereby allow antenna characteristics to be unaffected by the chassis 18.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: September 18, 2007
    Assignee: Hitachi Cable, Ltd.
    Inventors: Makoto Usui, Yuuki Yamamoto, Ryo Sato